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what is the formula for the circumference of a circle

 Dec 18, 2014

Best Answer 

 #1
avatar+118723 
+5

circumference = pi*d

or

circumference = 2pi*r

 Dec 18, 2014
 #1
avatar+118723 
+5
Best Answer

circumference = pi*d

or

circumference = 2pi*r

Melody Dec 18, 2014

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